Home / 193,536,004.20-290,304,006.30-72,351,709.80

Finding the Fourth Proportional to 193,536,004.20, 290,304,006.30 and 72,351,709.80

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Solution

The fourth proportional to 193,536,004.20, 290,304,006.30 and 72,351,709.80 is: 108,527,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,536,004.20 : 290,304,006.30 = 72,351,709.80 : x
  2. Step 2: Convert to fraction form
    193,536,004.20/290,304,006.30 = 72,351,709.80/x
  3. Step 3: Cross multiply
    193,536,004.20x = 290,304,006.30 × 72,351,709.80
  4. Step 4: Simplify right side
    193,536,004.20x = 21,003,991,217,594,972
  5. Step 5: Solve for x
    x = 21,003,991,217,594,972/193,536,004.20
  6. Step 6: Final answer
    x = 108,527,564.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.